A Florida man convicted in one of a series of suspected killings that became known as the “Hog Trail Murders” in the 1990s was put to death Thursday, becoming the state’s 15th person executed this year. Daniel Owen Conahan Jr., 72, was pronounced dead at 6:12 p.m. after receiving a three-drug lethal injection at Florida State Prison near Starke. He had been sentenced to die for the 1996 kidnapping and strangling of Richard Allen Montgomery, whose mutilated body was found in a wooded southwest Florida area where authorities found the remains of at least six people over a three-year span....